VS
Name
—
Mg₃(PO₄)₂·8H₂O
Formula
—
Mineral Species
Entry type
—
Phosphates
Chemical class
—
Monoclinic
Crystal system
—
2–2.5
Mohs hardness
—
2.195
Specific gravity
—
—
Streak
—
Nearly vitreous to pearly on cleavages
Luster
—
{010}, perfect
Cleavage
—
C2/m
Space group
—
Vivianite
Structural group
—
Bob · Grandfathered
IMA
—
1868
Named in
—
Colorless, white, may be blue; in transmitted light, colorless
Typical colors
—
Mg · P · O · H
Elements
—